Z30030 - Section Properties

The Z30030 is a cold-formed Z-purlin with a mass of 12.76 kg/m, an overall depth of 300 mm and width of 100 mm and a wall thickness of 3 mm. It has a cross-sectional area of 16 cm², a second moment of area Iᵧ of 21.9 cm⁴, tabulated by CivilAxis from Continental Steel.

Mass: 12.76 kg/m
Depth: 300 mm
Width: 100 mm
Wall thickness: 3 mm
Area: 16 cm²

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Z30030 section properties to Continental Steel.
Geometry
Depth of section	h	300
Width of section	b	100
Wall thickness	t	3
Mass and area
Mass per metre	mass	12.76
Cross-sectional area	A	16
Bending about the major axis (y-y)
Area moment of inertia about y-axis	I_y	21.9
Radius of gyration about y-axis	i_y	304
Bending about the minor axis (z-z)
Area moment of inertia about z-axis	I_z	28.7
Elastic section modulus about z-axis	W_el,z	2130
Radius of gyration about z-axis	i_z	588
Principal axes
Area moment of inertia about u-u (major principal) axis	I_u	2310
Area moment of inertia about v-v (minor principal) axis	I_v	1.32